Pentair Fleck 4600 MECH, Руководство по установке

Страница: 42 / 92

Installer manual Fleck 4600 MECH - Installation
42 / 92 Ref. MKT-IM-027 / C - 12.11.2019
Caution - material
Risk of damage due to over-force !
The drain line plastic elbow must always be hand-tighten without using the elbow as a
lever.
The drain plastic elbow is not designed to support the weight of the tube. The tube has to
have its own support.
Do not over tighten the hose tightening ring on its plastic support.
Preferably, the unit should not be more than 6.1 m from the drain. Use an appropriate adapter
fitting to connect plastic tubing to the drain line connection of the valve.
If the backwash flow rate exceeds 22.8 lpm or if the unit is located 6.1-12.2 m from the drain, use
19.0 mm (¾") tubing. Use appropriate fittings to connect the 19.0 mm (¾") tubing to the
12.7 mm (½") drain connection on the valve.
The drain line may be elevated up to 1.8 m providing the run does not exceed 4.6 m and water
pressure at the softener is not less than 2.76 bar. Elevation can increase by 61 cm for each
additional 0.69 bar of water pressure at the drain connector.
Where the drain line is elevated but empties into a drain below the level of the valve, form a 18 cm
loop at the far end of the line so that the bottom of the loop is level with the drain line connection.
This will provide an adequate siphon trap.
Where the drain empties into an overhead sewer line, a sink-type trap must be used.
Secure the end of the drain line to prevent it from moving.
Mandatory
Waste connections or the drain outlet shall be designed and constructed to provide
connection to the sanitary waste system through an air-gap of 2 pipe diameters or
38.1 mm (1½"), whichever is larger.
Caution - material
Risk of damage due to lack of gap !
Never insert the drain line directly into a drain, sewer line or trap. Always allow an air
gap between the drain line and the waste water to prevent the possibility of sewage being
back-siphoned into the softener.